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From e8afde87ecf56beff67c7d5371cabaa4fc018541 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 23 Jul 2011 23:57:06 +0200
Subject: [PATCH 14/26] ssb: move flash to chipcommon
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
arch/mips/bcm47xx/nvram.c | 8 +++---
arch/mips/bcm47xx/wgt634u.c | 8 +++---
drivers/ssb/driver_mipscore.c | 36 +++++++++++++++++++++-------
include/linux/ssb/ssb_driver_chipcommon.h | 18 ++++++++++++++
include/linux/ssb/ssb_driver_mips.h | 4 ---
5 files changed, 53 insertions(+), 21 deletions(-)
--- a/arch/mips/bcm47xx/nvram.c
+++ b/arch/mips/bcm47xx/nvram.c
@@ -27,7 +27,7 @@ static char nvram_buf[NVRAM_SPACE];
static void early_nvram_init(void)
{
#ifdef CONFIG_BCM47XX_SSB
- struct ssb_mipscore *mcore_ssb;
+ struct ssb_chipcommon *ssb_cc;
#endif
#ifdef CONFIG_BCM47XX_BCMA
struct bcma_drv_cc *bcma_cc;
@@ -42,9 +42,9 @@ static void early_nvram_init(void)
switch (bcm47xx_bus_type) {
#ifdef CONFIG_BCM47XX_SSB
case BCM47XX_BUS_TYPE_SSB:
- mcore_ssb = &bcm47xx_bus.ssb.mipscore;
- base = mcore_ssb->flash_window;
- lim = mcore_ssb->flash_window_size;
+ ssb_cc = &bcm47xx_bus.ssb.chipco;
+ base = ssb_cc->pflash.window;
+ lim = ssb_cc->pflash.window_size;
break;
#endif
#ifdef CONFIG_BCM47XX_BCMA
--- a/arch/mips/bcm47xx/wgt634u.c
+++ b/arch/mips/bcm47xx/wgt634u.c
@@ -156,10 +156,10 @@ static int __init wgt634u_init(void)
SSB_CHIPCO_IRQ_GPIO);
}
- wgt634u_flash_data.width = mcore->flash_buswidth;
- wgt634u_flash_resource.start = mcore->flash_window;
- wgt634u_flash_resource.end = mcore->flash_window
- + mcore->flash_window_size
+ wgt634u_flash_data.width = mcore->pflash.buswidth;
+ wgt634u_flash_resource.start = mcore->pflash.window;
+ wgt634u_flash_resource.end = mcore->pflash.window
+ + mcore->pflash.window_size
- 1;
return platform_add_devices(wgt634u_devices,
ARRAY_SIZE(wgt634u_devices));
--- a/drivers/ssb/driver_mipscore.c
+++ b/drivers/ssb/driver_mipscore.c
@@ -190,16 +190,34 @@ static void ssb_mips_flash_detect(struct
{
struct ssb_bus *bus = mcore->dev->bus;
- mcore->flash_buswidth = 2;
- if (bus->chipco.dev) {
- mcore->flash_window = 0x1c000000;
- mcore->flash_window_size = 0x02000000;
+ /* When there is no chipcommon on the bus there is 4MB flash */
+ if (!bus->chipco.dev) {
+ pr_info("found parallel flash.\n");
+ bus->chipco.flash_type = SSB_PFLASH;
+ bus->chipco.pflash.window = SSB_FLASH1;
+ bus->chipco.pflash.window_size = SSB_FLASH1_SZ;
+ bus->chipco.pflash.buswidth = 2;
+ return;
+ }
+
+ switch (bus->chipco.capabilities & SSB_CHIPCO_CAP_FLASHT) {
+ case SSB_CHIPCO_FLASHT_STSER:
+ case SSB_CHIPCO_FLASHT_ATSER:
+ pr_info("serial flash not supported.\n");
+ break;
+ case SSB_CHIPCO_FLASHT_PARA:
+ pr_info("found parallel flash.\n");
+ bus->chipco.flash_type = SSB_PFLASH;
+ bus->chipco.pflash.window = SSB_FLASH2;
+ bus->chipco.pflash.window_size = SSB_FLASH2_SZ;
if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG)
- & SSB_CHIPCO_CFG_DS16) == 0)
- mcore->flash_buswidth = 1;
- } else {
- mcore->flash_window = 0x1fc00000;
- mcore->flash_window_size = 0x00400000;
+ & SSB_CHIPCO_CFG_DS16) == 0)
+ bus->chipco.pflash.buswidth = 1;
+ else
+ bus->chipco.pflash.buswidth = 2;
+ break;
+ default:
+ pr_err("flash not supported.\n");
}
}
--- a/include/linux/ssb/ssb_driver_chipcommon.h
+++ b/include/linux/ssb/ssb_driver_chipcommon.h
@@ -582,6 +582,18 @@ struct ssb_chipcommon_pmu {
u32 crystalfreq; /* The active crystal frequency (in kHz) */
};
+#ifdef CONFIG_SSB_DRIVER_MIPS
+enum ssb_flash_type {
+ SSB_PFLASH,
+};
+
+struct ssb_pflash {
+ u8 buswidth;
+ u32 window;
+ u32 window_size;
+};
+#endif /* CONFIG_SSB_DRIVER_MIPS */
+
struct ssb_chipcommon {
struct ssb_device *dev;
u32 capabilities;
@@ -589,6 +601,12 @@ struct ssb_chipcommon {
/* Fast Powerup Delay constant */
u16 fast_pwrup_delay;
struct ssb_chipcommon_pmu pmu;
+#ifdef CONFIG_SSB_DRIVER_MIPS
+ enum ssb_flash_type flash_type;
+ union {
+ struct ssb_pflash pflash;
+ };
+#endif /* CONFIG_SSB_DRIVER_MIPS */
};
static inline bool ssb_chipco_available(struct ssb_chipcommon *cc)
--- a/include/linux/ssb/ssb_driver_mips.h
+++ b/include/linux/ssb/ssb_driver_mips.h
@@ -19,10 +19,6 @@ struct ssb_mipscore {
int nr_serial_ports;
struct ssb_serial_port serial_ports[4];
-
- u8 flash_buswidth;
- u32 flash_window;
- u32 flash_window_size;
};
extern void ssb_mipscore_init(struct ssb_mipscore *mcore);
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